Emergency-lever.



1E. E. GRAY.

EWIERGENCY LEVER. APPucATloN FILED AUGJB, 1913.

Mmmm@ Patented June 25,1918.

EL 7m Y narran sraarias rarniar FE11M.

EDWARD E. GRAY, 0F PLANO, ILLINOIS, ASSIGNOR T0 GRAY PNEUMATIO GEAR SHIFT l COMPANY, A CORPORATION OF ILLINOIS.

EMERGENCY-LEVER.

Speccation of Letters Patent. Patented diurni@ 25, 11911@ Application filed August 5, 1913.. Serial No. 735,226.

To all whom it may concern. y

Be it known that I, EDWARD E. GRAY, a citizen of the United States, residing at Plano, in the county of Kendall and State of Illinois, have invented certain new and useful Improvements in Emergency-Levers, of which the following is a specification.

This invention relates particularly to an emergency hand lever to be used in connection with a pneumatic gear shifting mechanism, and the )rincipal object of the invention is to provi e a device of this class which may be easily operated and placed in operation.

The invention consists in the features of novelty in the construction, combination and arrangementof the several parts generally shown in `the accompanying drawing and described in the specification, but more particularly pointed out in the appended claims.

In the drawings, Figure 1 is a view partly4 in section illustrating the application of my invention to a pneumatic gear shifting mechanism; and Fig. 2 is a perspective View of the preferred form of lever.

` In pneumatic gear shifting mechanism, such for example as that shown and described in my co-pending application 'for gear shifting mechanism, Serial No. 708,761, iiled in the U. S. Patent ()iice on or about July 11, 1912, it may happen that some of the parts may become inoperative in the ordinary manner which will render it necessary that means be provided for eHecting the gear shifting operation by means other than the pneumatic devices. The present invention exemplilies a manner for accomplishing this result.

A portion of a gear shifting mechanism to which the present invention is applicable is illustrated by Fig. 1, which comprises a transmission gear case 5 to which a supporting member 6 is secured." Extending through the gear case 5 are gear shifting rods 7 (only one being shown) having a rack portion 8 meshing with a pinion 9' and the pinion in turn meshing with a racklO o1 corresponding rods 11. rllhese rods 7 and 11 are provided with notches 12 adjacent their outer extremity, and in the outer end of the member 6 is a cylinder 13 in which a piston 14 is movable. A cylinder head 15 closes the outer end of the cylinder and a piston rod 16 secured to the piston is movable and extends through the cylinder head. Mounted at the end of the rod 16 is a gear 17 with which a gear segment 18 meshes, by means of which the gear 17 and the piston rod 16 may be freely rotated in either direction. Mounted in a suitable recess in the shaft or rod 16 and rotatable with it is a dog 19 adapted to engage the notch 12 of either of the rods 7 and 11. Movable longitudinally with the shaft or rod 16 is a plate 20 which is adapted to engage the ends of the rods 7 and 11 to return them all to neutral when the piston rod is moved in one direction. The piston 111 and the rod 16 are moved longitudinally in the cylinder by fluid under pressure admitted through either of the ports 21 or 22, which are in turn controlled by a valve, designated generally by the reference numeral 23. i

Inter-posed between the plate 20 and the gear-17 is a collar 24 having an annular notch 25. Disposed above the gear shifting mechanism is a support 26 in which a transl verse .bearing pin 27 is fixed.

During the normal operation of the gear shifting mechanism the piston will be reciprocated by means of fluid under pressure admitted through the ports at the lends thereof, and the different driving engage-- ments are eiiected by rotating the dog 19 into engagement with the notch at the end of one of the rods. dIfthe fluid pressure device is rendered inoperative for any reason some means must be provided for shifting the longitudinally movable rod 16 by some other means.

A lever 28 is provided with a handhold portion 29 at one end and with a yoke4 30 at the other, the extremities of the yoke being provided with pins 31 which are adapted to engage the notch 25 of the collar 24.' This lever is adapted to be pivoted to the pin 27 in any suitable manner.

A slot 32 opens from the opposite edges of the yoke and extends upwardly until t ey join where it continues toward the ot V1er end ofthe level' forming a fulcruming slot 33. In order to place this lever in position it is necessary only to place the yoke over the pin 27 until the lateral oienings inthe edges of the yoke register with the pin .27 and then to rotate the lever, causing the pin to ride into theslots, whereupon the lever may be pressed'downwardly unt-il the pin enters the fulcruming portion 33 of the slot, whereupon the yoke will be in posit-ion to engage the pins, 31 with the annular notch 4operated for selectively operating the gear lof the rod 1.6 to effect the movement of the rods.

rihe gear shifting mechanism for which this. lever is designed is particularly designed and adapted to be used in connection With automobiles, although, of course, it may have a more general use, and when so used the support 26 corresponds with the floor of the automobile.

What I claim is:

l. An emergency shifting lever comprising a hand hold at one end, a forked gripping device at the other, and an intermediate slotted portion in the handle and forks adapted to engage a fixed pivot pin at any distance from the end.

2. A removable lever having gripping means at one end and a slotted intermediate portion with slots extending from the sides of the forks by which the lever can be adjustab'ly pivoted on any fulcrum pin.

3. A lever having a hand hold at one end, a releasable gripping device comprising a forked extremity at the other end, and a slotted intermediate portion extending in the handle and in both of the forks by means of which the lever can be adjustably pivoted on any fulcrum pin within the limits of the slot.

4. A lever having a yoke at the lower end and Slots opening from opposite sides of the voke and extending up the lever to form a continuous fulcruming slot.

5. A lever having a yoke at one end, with slots opening from opposite sides of the yoke and extending to and up the lever whereby the vokc can be placed over a fulcrum and the level.' rotated and moved to engage the-fulcrum in the lever portion of the slot.

In testimony whereof I have signed my name to this specication, in the presence of two subscribing witnesses7 on this 13th day of August A. D. 1913.

EDWARD E. GRAY.

Witnesses:

ALLENA OrFUTr, KENT W. WONNELL. 

